<template>
    <div>
        <button @click="isShow = !isShow">显示/隐藏</button>
        <!-- 
            appear : 一上来执行一次
         -->
        <transition-group name="hello" appear>
            <h1 v-show="!isShow" key="1">你好啊</h1>
            <h1 v-show="isShow" key="2">徐凤年</h1>
        </transition-group>
    </div>
</template>

<script>
export default {
    name:'Test2',
    data(){
        return {
            isShow : true,
        }
    }
}
</script>

<style scoped>
    h1{
        background-color: orange;
        
    }

    /* 进入的起点 、离开的终点*/
    .hello-enter,.hello-leave-to{
        transform: translateX(-100%);
    }

    .hello-enter-active,.hello-leave-active{
        transition: 0.5s linear;
    }

    /* 进入的终点、离开的起点 */
    .hello-enter-to,.hello-leave{ 
        transform: translateX(0);
    }

 
</style>